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Hi,
Up until 2 days ago I had 4 Pylontech US3000C batteries and today I got 4 more so a total of 8 x Pylontech US3000C batteries are now used.
Do I need to change any settings on the inverter/Cerbro GX (somewhere) to make sure the system is using correctly all 8 batteries?
Thank you!
No.
But Balance them! Easiest way bring all batteries to 100% for at least 8 hours. After that connect them in parallel, add the communication cables, double check dip switches and that’s it.
1. Connect all batteries using the plus and minus between eachother
2. Connect the link cables (let link0 free on the master)
3. Screw the earthing
4. Get the can cable on the master
5. Start the master which will start the all
6. Change inverter to ESS with Keep batteries charged
7. Done
I’m not sure what you mean by connecting them in parallel ?
0.2. Check if the new 4 ones are more or less equal full (led).
0.3. If yes, Disconnect the old 4 and connect only the new 4 (with connection to Cerbo)
0.4. Charge them to 100% and let them there for 5-8 hours.
0.5. Adjust Ah in inverter. the cerbo already knows from the pylontech
Go ahead with 1.
If the SoC difference between the packs is too high you will get a more or less high current between the packs when first connecting them in parallel.
It is all clearly documented in the pylon install guide for the battery.
Just follow that.
You might want to update the “manual” capacity setting on the inverter, its good practice for in case the gx is unavailable.
